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Density

Link to relevant study record(s)

Reference

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

16 December 2014 to 05 February 2015

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

The study was conducted according to an internationally recognised method, and under GLP. The substance is considered to be adequately characterised with its purity. Therefore full validation applies.

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Deviations:

no

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7300 (Density / Relative Density / Bulk Density)

Principles of method if other than guideline:

Not applicable

GLP compliance:

yes

Type of method:

pycnometer method

Specific details on test material used for the study:

- Storage condition of test material: In refrigerator (2-8°C) protected from light, container flushed with nitrogen
- Stability at higher temperatures: Yes, maximum temperature: 40°C, maximum duration: 10 days

Dynamic viscosity of test material:

No data, but supposed to be flowable.

Type:

density

Density:

0.867 g/cm³

Temp.:

20 °C

Key result

Type:

relative density

Density:

0.867 other: dimensionless

Temp.:

20 °C

The individual measurements were obtained with a deviation of ≤ 0.01 g/cm³. According to the guideline, the density of the test substance is given as the mean value.

Table 4.4/1: Determination of the volume of the pycnometer

	Test 1	Test 2	Mean
Mass empty pycnometer (A)	30.4739 g	30.4743 g	30.4741 g
Mass pycnometer with water (B)	40.1120 g	40.1120 g
Volume of the pycnometer	9.6555 cm^3	9.6551 cm^3	9.6553 cm^3

 

Table 4.4/2: Density of the test substance

	Test 1	Test 2	Mean
Mass pycnometer with test substance (C)	38.8423 g	38.8428 g	30.4741 g
Density	0.8667 g/cm^3	0.8667 g/cm^3	0.867 g/cm^3

Conclusions:

The substance is much less dense than water.

Executive summary:

The density of the test substance was measured under GLP according OECD 109 / EU A3 guideline, pycnometer method.

Calibration was performed with water. Experiment was performed at 20 °C in duplicate, and the mean density was calculated, and converted to relative density vs water at 4°C.

 

The density of the test substance at 20 ºC was 0.867 g/cm³. The relative density D20/4 was 0.867.

Description of key information

The substance is much less dense than water.

Key value for chemical safety assessment

Relative density at 20C:

0.867

Additional information

A fully reliable experimental study, conducted according to a recognized OECD/EC method and under GLP, is available. It is considered as a key study, and the result is retained as key data.